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Home Aptitude Volume and Surface Area Comments

  • Question
  • What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?


  • Options
  • A. 814
  • B. 820
  • C. 840
  • D. 844

  • Correct Answer
  • 814 

    Explanation

    Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm. 

    Area of each tile = (41 x 41) sq.cm 

    Required number of tiles = 1517 x (902/41) x 41 = 814


  • Volume and Surface Area problems


    Search Results


    • 1. A rectangular parking space is marked out by painting three of its sides.If the length of the unpainted side is 9 feet, and the sum of the lengths of the painted sides is 37 feet, then what is the area of the parking space in square feet?

    • Options
    • A. 126sq.ft
    • B. 120sq.ft
    • C. 130sq.ft
    • D. 135sq.ft
    • Discuss
    • 2. The area of a square field is 69696sq.cm..its diagonal will be equal to

    • Options
    • A. 373
    • B. 573
    • C. 473
    • D. 673
    • Discuss
    • 3. If the perimeters of a square and a rectangle are the same, then the area a & b enclosed by them would satisfy the condition:

    • Options
    • A. a
    • B. a>b
    • C. a=b
    • D. none
    • Discuss
    • 4. If each side of a square is increased by 25%, find the percentage change in its area.

    • Options
    • A. 56.25%
    • B. 36.25%
    • C. 16.25%
    • D. 12.25%
    • Discuss
    • 5. The ratio of bases of two triangles is x:y and that of their areas is a:b. Then the ratio of their corresponding altitudes wll be

    • Options
    • A. ay:bx
    • B. a:b
    • C. x:y
    • D. bx:ay
    • Discuss
    • 6. The area of a field in the shape of a trapezium measures 1440sq m. The perpendicular distance between its parallel sides is 24cm. If the ratio of the sides is 5:3, the length of the longer parallel side is:

    • Options
    • A. 75
    • B. 85
    • C. 95
    • D. 105
    • Discuss
    • 7. A rectangular paper when folded into two congruent parts had a perimeter of 34cm foer each part folded along one set of sides and the same is 38cm. When folded along the other set of sides. What is the area of the paper?

    • Options
    • A. 140
    • B. 150
    • C. 160
    • D. 170
    • Discuss
    • 8. The perimeter of a square is 40 meters. Find the length of one side of the square

    • Options
    • A. 10m
    • B. 20m
    • C. 30m
    • D. 40m
    • Discuss
    • 9. The perimeter of a rectangle is 160 cm. The rectangle is 4 times longer than wide. What are the length and width of this rectangle?

    • Options
    • A. l=65;b=16
    • B. l=16;b=64
    • C. l=64;b=16
    • D. l=16;b=48
    • Discuss
    • 10. A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?

    • Options
    • A. 2.5?
    • B. 3?
    • C. 5?
    • D. 4?
    • Discuss


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